10 Best UVB Lights for Bearded Dragons (October 2026)

Bearded dragons need UVB to make vitamin D3 and absorb calcium, and the wrong light causes quiet, slow damage. A bulb that is too weak, too far from the basking spot, or past its useful life can leave a dragon with soft bones long before any symptom shows. A heat lamp sold as a "UVA/UVB" light adds to the confusion, because heat and UVB are separate jobs. Best UVB Lights for Bearded Dragons depends on three things: enclosure length, how far the basking spot sits below the lamp, and whether the fixture takes a coil bulb, a linear tube or an LED panel.

The short answer: the Zoo Med ReptiSun 10.0 Mini CFL suits keepers with a small enclosure and a short basking distance, the Lucky Herp 23W UVB 10.0 CFL suits anyone who wants a stronger screw-in coil bulb for a standard dome fixture, and the Zoo Med T5 HO ReptiSun 10.0 2-Pack suits owners of long enclosures who already have a T5 HO fixture. The rest of the list covers complete hood kits, an adjustable LED fixture, multi-bulb packs and one heat lamp that should be treated as a supplement, not a UVB source.

TL;DR: top picks at a glance

• Best overall: the Zoo Med ReptiSun 10.0 Mini CFL, a 13-watt coil lamp with 10% UVB and 30% UVA output that fits vertically or horizontally.
• Best for dome fixtures: Lucky Herp 23W UVB 10.0 CFL, a 23-watt E26 bulb rated at 1265 lumens for standard clamp lamps.
• Best for long enclosures: Zoo Med T5 HO ReptiSun 10.0 2-Pack, two 24-watt high-output tubes with a spare ready for the next replacement.
• Best for a complete setup: Zoo Med T5 HO 5.0 Hood Kit (14-Inch), a low-profile hood with electronic ballast and a polished curved reflector.

Best UVB Lights for Bearded Dragons Comparison (October 2026)

#	Product	Best for	UVB rating	Wattage	Format
1	Zoo Med ReptiSun 10.0 Mini CFL	Small enclosures	10.0	13 watts	Coil bulb
2	Lucky Herp 23W UVB 10.0 CFL	Dome fixtures	10.0	23 watts	Coil bulb
3	Zoo Med T5 HO ReptiSun 10.0 2-Pack	Long enclosures	10.0	24 watts	T5 HO tubes
4	Zoo Med T5 HO 5.0 Hood Kit (14-Inch)	Complete hood setup	5.0	Not listed	Hood and tube
5	Reptitrip 16-Inch LED UVB	Adjustable LED lighting	4 UVI modes	14 watts	LED fixture
6	Zoo Med Desert UVB and Heat Dual Kit	Light plus heat	10.0	13 watts (UVB lamp)	Dome kit
7	Repti Zoo T5 HO 10.0 Hood Kit	24-inch enclosures	10.0	24 watts	Hood and tube
8	Repti Home T5 24W 10.0 2-Pack	Spare tube stock	10.0	24 watts	T5 tubes
9	Jugbuy 23W UVB 10.0 CFL 2-Pack	Spare coil bulbs	10.0	23 watts	Coil bulbs
10	TFNN Clamp Heat Lamp with Timer	Supplemental basking heat	Not listed	50W + 75W	Clamp heat lamp

1. Zoo Med ReptiSun 10.0 Mini CFL: Best 13-Watt Compact UVB Lamp for Small Desert Enclosures

• UVB and UVA output: 10% UVB and 30% UVA
• Wattage: 13 watts, 100 to 120 volts at 60 Hz
• Size: about 6 inches long and 2 inches across
• Glass: UVB-transmitting quartz glass
• Rated operating life: 6 months

Pros:

• The 10% UVB and 30% UVA split matches what desert species like bearded dragons are normally given.
• Quartz glass is used to pass UVB through, which keeps output high for a lamp this small.
• It can be mounted vertically or horizontally, so it fits more fixtures than a bulb with a fixed orientation.
• At roughly 0.09 kilograms and 6 inches long, it fits compact domes that would not take a 23-watt coil.

Cons:

• The 13-watt output reaches a shorter distance than the 23-watt coils on this list.
• The listed operating life is 6 months, so you will be replacing it twice a year.
• It is a single bulb, with no spare and no fixture included.

Best for: Keepers of a juvenile or small adult dragon in a compact enclosure where the basking spot sits close under the lamp.

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What sets the Zoo Med ReptiSun 10.0 Mini CFL apart is its size. Most 10.0 coil bulbs are 23 watts and need a deep dome to hold them. This one is 13 watts, which means a small fixture can run it with fewer concerns about heat and bulk. It is the only single-bulb option here that is sized for the small end of the range.

The trade-off is reach. A 13-watt coil has less UVB energy to spread than the Lucky Herp 23W UVB 10.0 CFL, so the dragon needs to bask close to the lamp. If your enclosure is tall or your basking spot is far below the fixture, the Lucky Herp or one of the T5 tubes is the better fit. Its 6-month rated life also makes it the shortest-lived lamp in the group, so mark the install date.

It is also the lamp inside the Zoo Med Desert UVB and Heat Dual Kit, so owners who like this bulb but lack a fixture can look there. For a long enclosure, the wrong choice is this lamp. Go to the Zoo Med T5 HO ReptiSun 10.0 2-Pack instead.

2. Lucky Herp 23W UVB 10.0 CFL: Best 23-Watt Screw-In UVB Bulb for Standard Dome Fixtures

• UVB and UVA output: 10% UVB and 30% UVA
• Wattage and base: 23 watts, E26, 120 volts
• Brightness: 1265 lumens, 6000K
• Rated life: up to 12000 hours, with replacement advised every 6 to 12 months
• Size: about 5.7 inches long and 2.4 inches wide

Pros:

• The 23-watt rating puts out far more energy than the 13-watt Zoo Med ReptiSun 10.0 Mini CFL.
• The E26 base fits standard screw-in clamp lamps, so no special fixture is needed.
• At 1265 lumens and 6000K, the bulb also adds bright daylight-style visible light to the enclosure.
• The maker advises replacing it every 6 to 12 months, which is a clear, workable schedule.

Cons:

• It must go in a ceramic-safe socket and a dome deep enough for a 5.7-inch bulb.
• It is a single bulb, so you have no spare on hand.
• Coil bulbs spread their UVB less evenly along a long enclosure than a tube does.

Best for: Keepers using a standard clamp dome who want more UVB than a 13-watt coil can deliver.

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The Lucky Herp 23W UVB 10.0 CFL is the straightforward upgrade from a mini coil. It uses the common E26 base, delivers the 10% UVB and 30% UVA mix and is bright enough to light the enclosure on its own. The published life of up to 12000 hours is optimistic for UVB output, so the maker's 6 to 12 month replacement advice is the number to follow.

Against the Jugbuy 23W UVB 10.0 CFL 2-Pack, the specs are nearly identical: both are 23 watts on an E26 base. The difference is count, since Jugbuy sends two bulbs. If you want a spare, Jugbuy is the more practical purchase. Pick the Lucky Herp when you only need one bulb now.

If your enclosure is 48 inches or longer, a single coil is the wrong tool. A linear tube such as the Zoo Med T5 HO ReptiSun 10.0 2-Pack covers more of the tank length.

3. Zoo Med T5 HO ReptiSun 10.0 2-Pack: Best High-Output Tube Pair for Long Bearded Dragon Enclosures

• Wattage: 24 watts per tube
• Pack size: 2 tubes
• Type: T5 HO fluorescent, ReptiSun 10.0 UVB
• Warranty: 1 year
• Part number: OS5-24

Pros:

• High-output T5 tubes are built to deliver stronger, brighter UVB than standard fluorescent tubes.
• The two-pack gives you a replacement tube for the next change.
• A linear tube spreads UVB along the enclosure, which suits a dragon that moves between basking and cooler zones.
• A 1-year warranty is listed for the pair.

Cons:

• It needs a compatible T5 HO fixture and ballast, which are not included.
• Buyer feedback on reliability is mixed, with a few tubes reported as dead on arrival.
• Tubes are fragile in shipping, so check them on arrival.

Best for: Owners of a 4-foot style enclosure who already have a T5 HO hood and want a quality replacement pair.

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The Zoo Med T5 HO ReptiSun 10.0 2-Pack is the choice for dragons that need wider UVB coverage. A 24-watt T5 HO tube pushes UVB farther down than a coil, which matters in tall enclosures. Buyer feedback is positive on quality and bulb life, with several owners reporting use beyond the suggested 6-month interval, though the safest path is still to follow the maker's schedule.

The catch is that it is a bare tube pair. The Repti Zoo T5 HO 10.0 Hood Kit and the Zoo Med T5 HO 5.0 Hood Kit (14-Inch) include a fixture, while this pack assumes you have one. Mixed reliability feedback means you should test each tube right away and keep the packaging until you do.

If you do not own a hood, this pack is the wrong purchase. Pick the Repti Zoo kit instead, which pairs a fixture with a 24-watt 10.0 tube.

4. Zoo Med T5 HO 5.0 Hood Kit (14-Inch): Best Low-Profile T5 HO Hood for Tall Enclosures

• Lamp included: ReptiSun T5 HO 5.0 UVB
• Hood size: 14 inches, about 16.3 by 5.9 by 1.1 inches
• Ballast: T5 HO electronic, rapid start
• Reflector: highly polished and curved
• Warranty: 1 year

Pros:

• The low-profile design sits flat on top of the terrarium without crowding the space.
• The electronic T5 HO ballast gives rapid starts and runs the lamp at full performance.
• The polished curved reflector improves light coverage compared with a bare tube.
• The T5 HO design is meant to push UVB effectively at greater distances in larger and taller enclosures.

Cons:

• The included lamp is a 5.0, which is the tropical-range rating, and desert species like bearded dragons are usually given a 10.0.
• The lamp wattage is not listed.
• The 14-inch length is short for a full-size adult dragon's enclosure.

Best for: Keepers who want a ready-to-run hood and can place the basking spot at a distance where a 5.0 output is appropriate.

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The Zoo Med T5 HO 5.0 Hood Kit (14-Inch) is mainly a fixture, and the fixture is good. It combines a ballast, reflector and tube into one low-profile unit, which makes it the easiest path to a T5 HO setup. Because the kit ships with a 5.0 lamp, it fits setups where the dragon basks further from the light, or where you plan to swap in a 10.0 tube later.

For a straight desert setup, the Repti Zoo T5 HO 10.0 Hood Kit ships with a 24-watt 10.0 tube and is the closer match. The Zoo Med kit is also short at 14 inches, so it is the wrong choice for a 4-foot enclosure. A longer fixture running the Zoo Med T5 HO ReptiSun 10.0 2-Pack is the better fit there.

5. Reptitrip 16-Inch LED UVB: Best Adjustable LED UVB Fixture for Controlled Day-Night Cycles

• Wattage: 14 watts, 1200 lumens, 6500K
• Modes: M1 to M4 covering Ferguson zones 1 to 4, plus manual M0
• Controls: auto on/off and preset day-night dimming
• Build: aluminum body, rated for 7000 hours
• Size: about 16 inches long

Pros:

• Four UVI modes plus a manual setting let you match output to a bearded dragon's needs, not just accept a fixed number.
• Auto on/off and day-night dimming handle the lighting schedule without a separate timer.
• The aluminum body sheds heat faster than plastic housings.
• Mounting options include tank mesh, included hanging brackets or suspension from a wooden board.

Cons:

• It gives off no physical heat, so you still need a separate basking lamp.
• The maker warns that UVB test cards are not accurate, so a proper UV meter is needed to confirm output.
• It is only 16 inches long, which limits coverage in a long enclosure.

Best for: Keepers who want programmable, adjustable UVB and are willing to verify output with a meter.

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The Reptitrip 16-Inch LED UVB is the only adjustable fixture here. The M1 to M4 modes map to Ferguson zones, so you can set the output to suit the basking distance and then fine-tune in manual mode. That control is something none of the fluorescent options, such as the Repti Home T5 24W 10.0 2-Pack, can offer.

It does ask more of the owner. LED UVB is still newer, and the maker itself says to use professional equipment for measuring output. If you want a plug-in-and-forget lamp, the Zoo Med ReptiSun 10.0 Mini CFL is simpler. Because this fixture does not produce heat, it is the wrong choice for anyone who expects it to double as a basking lamp.

6. Zoo Med Desert UVB and Heat Dual Kit: Best 3-Piece Dome Kit for Small Tank Starters

• Contents: mini combo deep dome fixture, basking spot lamp, UVB lamp
• Basking lamp: Zoo Med Repti Basking Spot, 75 watts
• UVB lamp: ReptiSun 10.0 Mini CFL, 13 watts
• Set size: 3 pieces, about 2.2 pounds
• Base: E26, 120 volts

Pros:

• It bundles a fixture, a heat lamp and a UVB lamp, so a new setup needs no extra parts.
• The UVB lamp is the proven 13-watt ReptiSun 10.0 Mini CFL.
• The 75-watt basking bulb covers the heat side for small enclosures.
• Buyer feedback finds it well suited to small tanks.

Cons:

• Buyer feedback is mixed on heat output, with some finding it barely warms the enclosure.
• The dome is small, and some owners say it is too tight for the bulbs.
• Reliability reports are inconsistent, with some units failing within a week.

Best for: First-time owners of a small enclosure who want one box with heat and UVB.

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The Zoo Med Desert UVB and Heat Dual Kit trades power for convenience. Its UVB lamp is the same 13-watt part sold alone as the Zoo Med ReptiSun 10.0 Mini CFL, so you get identical UVB with a fixture and heat bulb included. The compromise is a small dome and mixed feedback on warming and UV coverage.

An adult bearded dragon in a larger tank is likely to outgrow it. Move up to the Lucky Herp 23W UVB 10.0 CFL with a roomier dome, or the Repti Zoo T5 HO 10.0 Hood Kit for better coverage.

7. Repti Zoo T5 HO 10.0 Hood Kit: Best 24-Watt Hood and Tube Combo for 24-Inch Enclosures

• Lamp included: Desert 10.0 UVB T5, 24 watts
• Enclosure match: 24-inch (the 39-watt and 54-watt versions suit 36-inch and 48-inch enclosures)
• Ballast: energy-efficient T5 HO electronic
• Power cable: removable, with on/off switch
• Extras: plastic end-cap protectors

Pros:

• A complete hood and 10.0 tube arrive together, so nothing else is needed.
• The polished curved reflector is designed to raise efficiency and UVB strength.
• The removable power cable with an on/off switch makes installation and storage easier.
• The maker lists wattage tiers for 24, 36 and 48 inch enclosures, which simplifies sizing.

Cons:

• Specifications on the product page are inconsistent, so check dimensions and mounting before ordering.
• It is a one-tube kit, so you will need a spare tube.
• It also comes in Black and Polished finishes, and you should confirm which you are getting.

Best for: Keepers who want a first T5 HO hood already paired with a desert-rated tube.

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The Repti Zoo T5 HO 10.0 Hood Kit is the more suitable hood-and-tube kit for desert reptiles because the included tube is a 10.0, unlike the 5.0 in the Zoo Med T5 HO 5.0 Hood Kit (14-Inch). The sizing guide, with 24, 39 and 54 watt options, is useful if you are planning for a bigger enclosure.

Use it when you want a single-purchase fixture. If a hood is already installed, spend on the Zoo Med T5 HO ReptiSun 10.0 2-Pack or the Repti Home T5 24W 10.0 2-Pack instead. Its inconsistent product details are a reason to check dimensions carefully.

8. Repti Home T5 24W 10.0 2-Pack: Best Spare Tube Pair for Desert Reptile T5 Fixtures

• Wattage: 24 watts per tube
• Pack size: 2 tubes
• Length: about 22 inches
• Output: 10% UVB and 30% UVA, no UVC
• Rated life: up to 10,000 hours

Pros:

• The 10% UVB and 30% UVA output suits desert species.
• The 22-inch tube gives a wider lighting strip than a coil bulb.
• The two-pack means a replacement is already in the cupboard.
• Glass construction and a long listed life suit a stable setup.

Cons:

• The base is listed as G13, so compatibility with your fixture should be confirmed before ordering.
• The 10,000-hour rating should not stop you from replacing on a regular schedule.
• No fixture is included.

Best for: Keepers with a compatible 22-inch fixture who want an inexpensive pair of 10.0 tubes.

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The Repti Home T5 24W 10.0 2-Pack competes directly with the Zoo Med T5 HO ReptiSun 10.0 2-Pack. Both are 24-watt, 10.0, two-tube packs. Zoo Med is the better-documented choice, with a listed 1-year warranty and positive feedback on durability. Repti Home is the alternative if you need a second source.

The key step is checking the fixture. Because the base is listed as G13, confirm that it matches your hood before buying. If you have no fixture, the Repti Zoo T5 HO 10.0 Hood Kit is the easier route.

9. Jugbuy 23W UVB 10.0 CFL 2-Pack: Best Twin Coil Bulb Set for E26 Clamp Lamps

• Wattage and base: 23 watts, E26, 110 to 130 volts
• Pack size: 2 bulbs
• Output: 10% UVB and 30% UVA, no UVC
• Rated life: up to 10,000 hours
• Quality assurance: 1 month

Pros:

• Two 23-watt 10.0 bulbs come in one pack, so the replacement is already on hand.
• The 10% UVB and 30% UVA split matches a desert profile.
• UVB-transmitting quartz glass is used for stable output and a low fade rate.
• The E26 base fits standard clamp lamps.

Cons:

• The quality assurance period is only 1 month.
• The color rendering index is listed at 20, so colors under it look less natural.
• The bulbs are rated up to 10,000 hours, but UVB output will fade sooner.

Best for: Keepers with an E26 dome who want two coil bulbs on hand for the year.

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The Jugbuy 23W UVB 10.0 CFL 2-Pack matches the Lucky Herp 23W UVB 10.0 CFL on wattage and base, and wins on count. Two bulbs per pack makes the yearly schedule easier to follow.

The short quality assurance window is its weak point. If you want a single bulb with a clearer replacement guideline, choose Lucky Herp. If you have a long enclosure, a tube such as the Zoo Med T5 HO ReptiSun 10.0 2-Pack is the better fit.

10. TFNN Clamp Heat Lamp with Timer: Best Dual-Bulb Basking Heat Lamp for Supplemental Warmth

• Bulbs: two, at 50 watts and 75 watts
• Timer: 3, 6 and 12 hour cycle modes
• Brightness: three adjustable levels
• Arm: 15.8-inch swan neck, 360 degree rotation
• Mounting: clamp

Pros:

• Two bulbs of different wattage let you choose the warmth that suits the season.
• The built-in cycle timer switches the lamp on and off automatically.
• The 15.8-inch swan neck rotates 360 degrees for flexible aiming.
• The metal clamp and shade are heat resistant.

Cons:

• UVB output is Not listed, and the bulbs are described as incandescent.
• It cannot replace a dedicated UVB lamp like the Zoo Med ReptiSun 10.0 Mini CFL.
• The bell-mouth shade and clamp suit small habitats best.

Best for: Owners who already have proper UVB and need a flexible basking heat source.

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The TFNN Clamp Heat Lamp with Timer is a heat product that mentions UVA and UVB in its marketing. Its specifications describe incandescent bulbs of 50 and 75 watts, and give no UVB percentage. Treat it as a basking heater.

The right pairing is with a dedicated lamp such as the Reptitrip 16-Inch LED UVB, which gives no heat of its own. If UVB is your goal, this is the wrong product, and any of the first nine would serve better.

Buyer's Guide: How to Choose the Right UVB Light for Bearded Dragons

The main trade-off is reach versus simplicity. Coil bulbs are easy to fit but cover a small area, tubes cover more of the enclosure but need a proper fixture, and LED panels offer control at the cost of extra checking.

Before choosing, check these project details:

• Enclosure length: A 4-foot enclosure is better matched to a linear tube than a coil bulb.
• Basking distance: The gap between lamp and dragon decides how strong the lamp needs to be.
• Fixture type: Confirm the base and ballast before buying a tube or bulb.
• Replacement schedule: UVB fades long before the lamp stops glowing.
• Heat source: Most UVB lamps add little warmth, so plan basking heat separately.

UVB Strength and Spectrum Rating

Zoo Med and most competitors label lamps 5.0 or 10.0. The 10.0 grade, sold as 10% UVB and 30% UVA, suits desert species and is used by the Zoo Med ReptiSun 10.0 Mini CFL, the Lucky Herp 23W UVB 10.0 CFL and the Repti Zoo T5 HO 10.0 Hood Kit. The 5.0 grade in the Zoo Med T5 HO 5.0 Hood Kit (14-Inch) is designed for tropical species, though a greater basking distance can make it workable.

UVB is not like a tan. Products such as tanning bed lotion exist because human skin burns under intense UV, and a dragon has no such protection. That is why the distance guidance matters as much as the rating. Whichever lamp you buy, set the basking spot at the distance the maker specifies.

Coil, Tube or LED Format

Coil bulbs such as the Jugbuy 23W UVB 10.0 CFL 2-Pack screw into a standard fixture and cost little effort to install. Choosing by wattage alone is like judging budget binoculars by magnification alone: the number matters, but the glass behind it matters more. The quartz glass in the Zoo Med mini is one such detail.

Tubes spread UVB along the enclosure. The Zoo Med T5 HO ReptiSun 10.0 2-Pack and Repti Home T5 24W 10.0 2-Pack are options. LED fixtures like the Reptitrip 16-Inch LED UVB add adjustable modes and timers, but call for a UV meter to verify output.

Fixture Compatibility and Mounting

A tube needs the right ballast and base, and the Repti Home T5 24W 10.0 2-Pack lists a G13 base, so check before buying. A coil bulb needs a deep dome and a socket rated for its wattage. Complete kits such as the Repti Zoo T5 HO 10.0 Hood Kit remove that guesswork.

Mounting also matters. The Reptitrip supports mesh mounting or hanging brackets, while the TFNN Clamp Heat Lamp with Timer uses a clamp with a swan neck. A sturdy mount keeps the lamp at a consistent distance.

Basking Distance and Replacement Schedule

Coverage works like a golf umbrella: a wide canopy covers more, but the area at the edge gets less protection. Place the basking spot inside the strongest part of the lamp's field, and offer shade at the far end.

UVB output fades with use. The mini CFL is rated for 6 months, and Lucky Herp advises replacing every 6 to 12 months. Write the install date on the fixture. A twin pack, such as the Jugbuy 23W UVB 10.0 CFL 2-Pack, keeps a spare ready.

Frequently Asked Questions About UVB Lights for Bearded Dragons

Do Bearded Dragons Need UVB Light Every Day?

Yes, bearded dragons need daily UVB to process calcium and vitamin D3, and a lamp left on a regular day-night schedule works well. The Reptitrip 16-Inch LED UVB has auto on/off and preset dimming that handle this. Fluorescent options like the Zoo Med T5 HO ReptiSun 10.0 2-Pack work with a plug-in timer.

Is 10.0 or 5.0 UVB Better for a Bearded Dragon?

A 10.0 lamp is the usual choice, because bearded dragons are desert reptiles. The Lucky Herp 23W UVB 10.0 CFL and Repti Zoo T5 HO 10.0 Hood Kit both use 10.0 output. A 5.0 lamp such as the one in the Zoo Med T5 HO 5.0 Hood Kit (14-Inch) can work when the dragon basks farther from the light.

How Often Should I Replace a UVB Bulb?

Follow the maker's schedule, which is 6 months for the Zoo Med ReptiSun 10.0 Mini CFL and 6 to 12 months for the Lucky Herp 23W UVB 10.0 CFL. UVB fades before the light stops glowing, so appearance is not a guide. Buying a two-pack like the Jugbuy 23W UVB 10.0 CFL 2-Pack makes replacement easy.

Can a Heat Lamp Replace a UVB Light?

No, a heat lamp provides warmth and does not substitute for a rated UVB lamp. The TFNN Clamp Heat Lamp with Timer lists incandescent bulbs and no UVB percentage. Pair it with a lamp like the Zoo Med ReptiSun 10.0 Mini CFL instead.

Coil Bulb or Tube: Which Is Better?

A tube is better for long enclosures because it spreads UVB along its length, as with the Zoo Med T5 HO ReptiSun 10.0 2-Pack. A coil bulb is easier to fit in a standard dome and suits smaller enclosures, such as the Lucky Herp 23W UVB 10.0 CFL. Your enclosure length and fixture decide the answer.

Is a Combined UVB and Heat Kit Enough?

A combined kit such as the Zoo Med Desert UVB and Heat Dual Kit can work for a small tank. Buyer feedback is mixed on heat output and UV coverage, though. Larger enclosures are better served by separate heat and a stronger UVB lamp.

Final Verdict: Which UVB Light for Bearded Dragons Should You Buy?

Best UVB Lights for Bearded Dragons for most keepers start with Zoo Med ReptiSun 10.0 Mini CFL: a 13-watt coil with 10% UVB and 30% UVA output, quartz glass, and a compact 6-inch body that mounts vertically or horizontally. Its main weakness is reach and life. The 13-watt output works best at a short basking distance, and the rated life is 6 months.

For alternatives, match the lamp to the enclosure. The Lucky Herp 23W UVB 10.0 CFL and Jugbuy 23W UVB 10.0 CFL 2-Pack give more power in a standard E26 dome, with Jugbuy adding a spare. For long enclosures, the Zoo Med T5 HO ReptiSun 10.0 2-Pack and Repti Home T5 24W 10.0 2-Pack deliver 24-watt linear coverage. Those without a fixture should look at the Repti Zoo T5 HO 10.0 Hood Kit.

The specialist picks cover narrower cases. The Reptitrip 16-Inch LED UVB suits keepers who want adjustable modes and a built-in schedule, the Zoo Med T5 HO 5.0 Hood Kit (14-Inch) suits tall setups with a distant basking spot, and the Zoo Med Desert UVB and Heat Dual Kit suits small starter tanks. The TFNN Clamp Heat Lamp with Timer is only a heat source. If you are still undecided, measure your enclosure length and basking distance first, then pick the tube or coil that fits.